Production of laundry pads



June 4,1935 DAUGHDRILL} 2,003,741 I PRODUCTION 0F LAUNDRY PADS Filed April 1, 193s A TTORNEYS.

Patented June 4, 1935 T- oFFic E,

rnonuc'rron F LAUNDRY Pans James Harold-Dauglidrill, Lagrange, Ga, as

signer to Galloway Mills, Lagrange, Ga.

, Application April 1, 1933, Serial No. .s saoas' 5Claims.

My invention relates to improvements in laundry pads and it more especially'consists of the features pointed out in the annexed claims.

The purpose of my invention isto provide com- 5 posite or double layer laundry pads to overcome the inherent shortcomings of single layer Dads as made heretofore; that by reason of double layers in staggered relation to each other openings will not form through the pad when it is stretched and subjected to heat in laundry use; that because of a single roving or sliver beingflrst positioned as a part of one group in staggered relation to a pair of adjacent rovings forming a part of a second group when knitted to each other the rovings of one layer or group are maintained in this relation to the rovings in the second layer or group, the layers become. imbedded into each other; and this use of two layers, increases the life of apad and the speed of production is practically doubled.' This application is a continuation in part of Serial No. 409,681 filed November 25, 1929.

With these and other ends in view, I illustrate in the accompanying drawing such instances of adaptation as will disclose the broad underlying features without limiting myself to the specific details shown thereon and described herein. Fig. 1 is a diagrammatic end view of two groups of slivers or rovings assembled in staggered relation to each other as positioned, one free and the others being knitted. I

Fig. 2 is a diagrammatic edge view of a plurality of slivers assembled in two layers. n

Fig. 3 is a diagrammatic plan view of a portion of the selvage of a pad. Fig. 4 is a diagrammatic end view of a plurality of slivers asassembled in relation to the needles and the thread carriersh'own at the left ready to 40 move toward the right. v

Fig. 5 is a view similar to Fig. 4 the position of the needles being reversed and the thread carrier shown at the right ready to move toward the left.

Fig.6 is a diagram of the thread carriers interrovings m reduced size mittent movements.

In the manufacture of laundry, pads I may use whatever alternatives or equivalents of structure that may be found cooperatively desirable without departing "from the broad spirit of the invention.

Laundry pads, as used heretofore, have been of exceeding short life because they contain only a single layer of rovings or slivers which with the slightest stretch begin to form openings between adjacent rovings- These openings gradually besliver being I come enlarged. They permit heat to pass through against the usual canvas covering (not shown). It is not unusual that the unshielded'heat passes throughfthe openings and injures the covering and also damages the goods being laundered. These adverse conditions are well known and they persist regardless of the strength or style of kniti i I ting to hold the rovings assembled as a unit. I

My invention overcomes these difliculties through the use of two separate layers of rovings held assembled by threads which are knitted together on the outside of each layer. 'In Fig. 2, the rovings I form one layer and the rovings 2 form the otherlayer of a composite pad. These lay-" ers, as stated,-are formed withthe' rovings of one layer positioned in contact with and are uni-" formly positioned in close contact withftherovings of theother layer, as andi'when made and j permanentlyv thereafterbecause the separate rovv ings and separate layers when first knitted are assembled approximately vertically and are so staggered that the rovings in one layer areso position'ed with respect to the rovings of the other layer that a line Joining the centers of any two oppositely adjacent rovings makes an angle of 25 approximately thirty degrees with the horizontal. As the pad becomes stretched in use under considerable heat the angular relation of the centers of the rovings in one layer tothe centers of the close contacting rovings in the other layer grad- 3o vually changes until the two layers merge into a single layer, at which time the rovings. can no longer prevent openings forming in the pad. insures a uniform stress resisting quality for I each layer individually and a combined efficiency, 35 not attainable in laundry pads as made hereto fore because no openings can be formed through the pad even though it is stretched in use. In the drawing therovings are shown diagrammatically as full'ciroles. In practice the knitting .40 will compact the layers into each other so that there will be no unoccupied spaces between-the layers though, maintaining the round form of the In Fig. 3 a row of knitting on the underside of 4 the pad is shown in dottedlines to one side .of' the row of knitting on the top side to overcome the impracticability of showing one rowdirectly below. the other-in a plan view. I

This type of padding is used beneath a canvascover-duck on roll-type ironing machines, ironing presses, ironing boards etc. It insures a maximum life of the cover duck'aud a moreresillent and smoother ironing body is formed'which se- 55 cures superior results at tenance. It is obvious that the staggered relation of the a lowered cost of mainrovings as first positioned and thereafter maintained, positions the centers of the rovings in one layer approximately sixty degrees from the centers of the rovings in the other layer. Without this staggered relation of the rovings as first positioned it is impossible to secure and maintain the uniform interbedding of the layers throughout the use of the pad.

In producing my laundry pads I practically double the'output by using a roving carrier on each side of the parallel rows of knitting needles 7 instead ofa single carrier as is used in forming single layer pads. These carriers move in alter-v nate directions along side the two rows of neevbe laid beforethe traverse towatd the right of the needle carrier is completed at R to repeat the cycle. The rovings l and 2 are first positioned in definite staggered relation to each other with the rovings of one layer spaced from the rovings of the other layer and they are then alternately knitted to previous rovings positioned at the same recurrence as shown in Fig. 2 to complete the laundry pad. The timing of the intermittent transverse movement of the thread carrier- 4 to the passage of the rovings l and 2 is controlled by cooperating mechanism (not shown) associated with thealternate raising and lowering of the needle carriers and the drive.

In the use of the term staggered relation I mean a geometric relation of the rovings of one layer to thegrovings'of the adjacent layer which spaces the rovings so that those of one layer, in the lengthwise relation of the pad, are partially between the rovings of the other layer so that when the finished pad is stretched, in use, the adjacent layers of rovings will automatically adjust themselves toward the center plane between the rovings while still maintaining their first spaced relation. Full dependence can be placed on the separate layers of rovings held together as a unit that they will not form openings between the adjacent rovings in either layer. Any tendency. as the pad is stretched, to form openings is automatically overcome by the rovings of the one laver cooperating with the rovings of the other layer. In contrast to this, as previously stated, a single layer of rovings, in a pad will on becoming stretched and subjected to heat form uncovered openings between adjacent rovings which will cause the cover duck and the articles whichare being laundered to be damaged. V 1

Unless the adjacent layers are definitely and uniformly spaced in' relation to their respective rovings so as to be continuously drawn toward the center planebetween the layers the purpose of the invention will be defeated. Rovings might be positioned in partial disalignment at irregular spacings as has been the prior practice but such an arrangement will defeat the purpose of the invention because, unless the two layers of rovingsof the other layer.

are uniformly positioned throughout the entire length of the pad, openings will inevitably be formed where the two layers of rovings are not symmetrically grouped. Applicant's structure completely overcomes these defects. They cannot possibly arise when the adjacent layers of all the rovings throughout the entire length of the pad are geometrically spaced in relation to each other, and are so held through the life of the pad. I

What I claim is:-- I

1. The method of forming a composite laundry pad, which consists in first assembling separate layers of rovings in staggered relation so that the rovings of one layer are so positioned with respect totherovings of the other layer that a line joining the center-so! any two opposite rovings makes an angle of approximately thirty degrees with the horizontal, and in knitting the rovings and layers to each other resulting in the staggered layers as first made being held in close contact and maintainedin this relation throughout the use of the pad whereby openings will not form betweenthe rovingsofonelayerandtherovings 2. The method of-forming a laundry pad, which consists in first assembling a pair of rovings in such relation to each other that another roving in an adjacent layer is so staggered with respect to the rovings of the other layer that a line joiningthe centers of two adjacent oppo-- site rovings is approximately thirty degrees from the horizontal. in knitting the rovings to each other, in alternately adding other rovings also in similar staggered relation to each other, and in alternately knitting the rovings to the previously staggered knitted rovings to form separate layersheld in close contact so that the rovings of one layer are positioned on a separate plane from the rovings of the other layer and in close contact with each other resulting in the layers being maintained in this close contact relation throughout the use of the pad whereby openings will not be formed between the rovings of.one layer and therovin'gsoftheotherlayer.

3. The process of forming composite laundry pads, which consists in first assembling separate rovings of soft cotton in staggered relation to each other to form separate layers the rovings of one layer being so staggered with respect to the rovings of the other layer that a line joining the centers of any two adjacent opposite rovings makesan angle of approximately thirty degrees with, the horiaontal. and in knitting the rovings of each layer to each other in close contact and 1 the layers to each other in close contact to form a pad that will not produce openings through the assembled layers (lining the life of the pad.

4. The production of composite ,laundry pads, which consists in first alternately passing separate rovings on different planes in staggered relation in opposite direction to form two layers so that the position of the rovings in one layer are staggered withrespect to the rovings of the other layer that a line joining the centers of any two adjacent rovings makes an angle of approximately thirty degrees to the horizontal, in knitting therovingstoeachotherandtotherovingsthat are subsequentlypassed in staggered relation in opposite directions adjacent the previously knitted rovings to form a composite laundry pad composed of two separate layers of which the rovings of one layer are positioned in close contact with therovingsoftheotherlayerandinclosecontact with each other when first knitted resulting in the layers being maintained under stretching and heating throughout their use with the rov ings of one layer in staggered relation and close contact with the rovings of the other layer.

5. The process of producing imperforate laundry pads which consist in arranging a plurality of knitting needles in parallel rows in spaced apart relation, in causing a thread carrier to be moved intermittently transverse of the rows or needles, in alternately laying separate rovings adjacent each other between the needles in opposite direction so that the rovings are positioned in staggered relation to eachother on separate planes, in stopping the transverse movement 01. the thread carrier midway 01' its traverse to the left and likewise in its traverse to the right to permit the alternate laying of separate rovings in their staggered relation to each other between the rows of needles, and in knitting the rovings of one layer to the rovings of the other layer so as to form a laundry pad which will retain its imperforate relation when stretched in use under the high temperature to which laundry pads are subjected.

JAMES HAROLD DAUGHDRIIL. 

